SN65HVD232: SN65HVD232DR power consumtion

Rehaman,

The power consumption of any CAN bus depends on several parameters: current consumption during a recessive bit, current consumption of a dominant bit, amount of time the bus is in dominant state and recessive state, the power dissipated through the termination resistance, and VCC voltage.

For a generic formula: P = [(1-D)*IREC*VCC] + [D*IDOM*(VCC - VOD)]

Where D is percentage of time bus is dominant, IREC is supply current consumption in the recessive state, IDOM is supply current consumption in the dominant state, VOD is the differential output voltage in the dominant state, and VCC is the supply voltage. 

In this particular device's datasheet, IREC and IDOM are only defined as maximums, so it may be best to measure this at the application level to determine the correct value for both.

Please let me know if you have any questions or concerns.

Regards,